Dental appliance



June 17, 1924.

W. LOREN Z DENTAL APPLIANCE Filed April 26 1922 Z7? veniorw PatentedJune 17, 1924,

o, irATEs WILLIAM LonENz, or NIAGARA FALLS, ONTARIO, CANADA] DENTALAPPLIANCE.

Application filed April 26, 1922. Serial No. 556,563. i i

To all whom it may concern:

Be it known that I, WILLiAM LORENZ, a! British subject, and resident ofNiagara Falls, county of iVelland, and Province of Ontario, Canada, haveinvented certain new and useful Improvements in'Dental Appliances, ofwhich the following is a specifica-' This invention relates toimprovements in dental appliances for use in combination with anyregular and properly suited dental forcep as now used for extractingteeth, the object of this appliance is to extract a tooth by liftingstraight out of the socket in the gum.

The general object being the discovery of an appliance, which, when usedincombination with a regular suitable dental forcep lifts a toothstraight out of the socket in the um. a Th object of this inventionis toprovide a simple and eflicient appliance of the class; set forth, forextracting teeth, by lifting straight out of the socket in the gum, ineither the lower orupperdental arch, with little or no discomfort to theperson, whose tooth or teeth areto be taken out.

Another object of the invention is to provide an applianc to be used incombination with any properly suited dental forcep as now in use, theappliance and the forcep being conveniently held and manipulated withboth hands, the proper forcep grips the tooth, and through the use incombination easily connected and combined as further on hereindescribed, the tooth is lifted straight out of the socket in the gum.

A further important object of the inventype, opening contra-scissorsfashion, having a fiat-nose upraising jawand a platelike jaw, andvarious parts so constructed that the appliance when combined with aproperly suited dental forcep as now being used, the appliance willcause a tooth to be lifted straight out of the socket in th gum, ineither the lower or upper dental arch.

The appliance embodies a pair of pivot 1 ally riveted members formingdouble hinge half through, contra-scissors fashion opening, spring jointpliers, with handle por tions, the jaws consist, one of the upraiserwhich raises the forcep and the other of a platelike jaw, of a, suitablesize and shape for the mouth, on the bottom of this plate being of myinvented dental appliance, which. is l many suitable dental forceps.

ance, shown com tion is to provide an appliance of the pliers a coveringwhich isremo-vable, thissaid covermgbemg of a suitable softsulostance ormaterial, the ob ect of this is to lessen the effect of any pressurewhich might be on the teeth and dental arches, this all being later onhereindescribed.

Various partsmake u the construction of this appliance and are allfurther on described. Y

This appliance which I have invented for the lifting of teeth straightout of the socket in the gum, is combinedfwith any regular and suitabledental forcep, by the manner later herein described. I

Two separate appliances as herein de scribed will be necessary, to beused combined with a suitable dental forcep. One appliance, for theright side of the lower dental arch and left side of the upper dentalarch. And one appliance for the left side of the lower dental arch andright side of This appliance, is

the upper dental arch. also to be provided in several different sizes aslater herein described. 7

The appliance described in the drawings is for the lower right side andupper left side. For the lower left side and upper right side theappllancewould be built on the opposite side, but inthe, same mannerotherwise. j

In the drawings: I v t Figure 1, is a plan view and form of theappliance, embodying the invention in combination with a regular dentalforcep.

Fig, 2, is a fragmentary view of the appliance, shown incombination withone of the Fig. 3,.is a fragmentary view of the appli- Fig. 4, a detailsectional view on the line VV, of the Figure 3.

Fig. 5, a detail sectional view on the line VI- VI, Crime Figure 2. j

6, a detail sectional view on the line VII-VTI, of the Figure 1; and iFig. 7, afragmentary plan view of the ined with a dental forcep'.

form of the means of combining the appli ance and a dental forcep;

double, hinge half through contra-scissor pin 3 through the adjacentextensions and 2 on the members 1 and 2. The longer arms ofthe membersbeing slightly bowed to form I Referring to the drawings by 'numerals,and 2 designate the pivoted members of the is provided with a flatspring 8, the free end of which loosely engages the handle portion ofthe member 2. This flat spring 8 is monnted on the member 1 (one). Thissaid member, l is also provided with a n adjustable set screw, 13. Thepurpose of this set screw is to regulate; or adjust the jaw 5 consistingof the jaw 7 according to the height of the tooth to be taken out.

Rising from the top. of this said plate 6 on the jaw 4, is an L-shapedelbowlike arm 10, on the outer end of this said arm 10 is a threadedpoint 11, on which after the hinge connection mechanism has beenattached is put a nut 12, purpose of this said nut 12 being to preventthis hinge connection from slipping or sliding off. This said hingemechanism is further on described. The outer bot-tomof the plate 6 iscovered with a removable cover of a suitably soft material or substance,which can be changed whenever desired. This covering slipping on and olfeasily. The purpose of this said covering being to lessen any pressurethere might be on the teeth when this appliance is inserted in themouth.

The hinge connection mechanism herein before mentioned is shown in theFigures 1, 5, and 6, and is shown attached in Fig. 7. This hingeconnection mechanism, consists of, a hingelike block 9, said block beingshaped asshown inFig. 5. In this said block 9, are two apertures, one aplain hole aperture 14, through which passes the elbowlike arm 10, andthe other aperture 15 is threaded to receive the screw part of the threepart screw 16, said screw 16 consisting of, the screw head,.the hingeplain smooth part, and the screw end which is threaded into the threadedaperture 15. 17 is a rivet with a head. In the head of this said rivet17 is a plain hole aperture 18. This said rivet 17 as described is to bemanufactured in various sizes and thicknesses, as to fit suitably forits purpose. The purpose of this said rivet 17 being described furtheron herein.

The dental forceps to be used in combination with this appliance will befitted with suitable rivets like rivet 17, of theproper size. Thepurpose ofthis rivet is toconnect the. forcep to be used and thisappliance. The manner of connecting-z First, the

top: of th old rivet in the forcep, is drilled v 1 out about of an inch,so that it (the old rivet) can be easily knocked or driven out. Thisdrilling can be done with a regular dentaldrill, The new rivet 17 of thesuitable size, (in the head of which rivet 17 is the plain hole aperture18) is put in from appliance.

the bottom of the forcep, in which. said forcep the old rivet has beenremoved). The top of the rivet 17 when put in is only loosely clinchedvso as to allow the -rivet 17 to act as pivot to turn or rock about. Theforcep is-n'ow ready to be combined with the been put'in the forcep, itcan be connected and disconnected whenever desired. To combine theforcep and appliance, the hinge part of} the before mentioned three partscrew passes throughthe aperture 18 inthe rivet 17. The screw end partof the three part screw 16 threads into the threaded aperture 15 of thehingelike block 9. This is done in such a. mannerthat the cut out partof the hinge like block 9, touches the aperture 18 in the rivet 17.

Various; sizes of this appliance will be provided for the Varying sizesof the dif; ferent mouths, to adapt the appliance to be inserted in thedifferent mouths to take out different classes or types of teeth,through the combining of this appliance with aregular properly suiteddental forcep.

The operation is as follows:

The proper forcep, supplied with the rivet 17 (in the head of this saidrivet 17 is the plain hole aperture 18) and this appliance are combinedin themanner heretofore described. The adjustable set screw 13 isadjusted or regulated according to theheight of the tooth to betaken out.The complete appliance is then held in one hand, while the otherhandholds the forceps which grips thetooth. The appliance isi'nsert-edin the mouthso that the plate 6, rests or presses on either the lower orupper dental arch, according to the location or position of'the tooth tobe taken out. By contracting the fingers of the hand holding theappliance, to press gently toward each other the handles 1 and 2, theflat spring 8 loosely engages the handle portion of the member 2, thejaw 5 consisting of the upraising jaw 7 as it approaches the jaw a willforce up the forcep gripping the tooth, this causing the tooth to bedrawn straight out of the socket in the gum, through the hingemechanism, of the hingelike block 9 heretofore described. As the rivet17 is only loosely clinched it will allow the forcep to slightly andgently loosen the tooth in the socket in the gum as the tooth is beingdrawn out through the raising of the u'prais'er 7 of which the jaw 5consists. The fi'atspring 8 loosely engages the handle portion ofjthemember 2 and] normally holds the pliergin the closedjposition; In F ig,7, theappliance and mouthof' the forcep are quite clearly shown inconnection.

VVhatI claim, and desire, to secure by Letters Patent, is:

1. A dental appliance comprising incomb-ination with a pair of forceps,apairof When this new rivet has once \I pliers comprising a pair ofjaws, one of said jaws being of platelike shape, and a hinge connectionbetween said plate and pair of forceps.

I 2. A dental appliance comprising in combination with a pair of dentalforceps having a loose pivot rivet, a pair of pliers comprising a pairof jaws, one of said jaws being of platelike shape, and a hingeconnection between said plate and rivet.

3. A dental appliance comprising in combination with a pair of forceps,a pair of pliers comprising a pair of jaws, one of said jaws being ofplatelike shape, a soft covering disposed at the outer surface of saidplatelike jaw, and a hinge connection between said plate and pair offorceps.

4:. A dental appliance comprising in combination with a pair of dentalforceps hav ing a loose pivot rivet, a pair of pliers comprising a pairof jaws, one of said jaws being of platelike shape, an elbow secured tosaid jaw, a block loosely connected to said elbow, and a hinge pinloosely passed through said rivet and secured to said block.

5. A dental appliance comprising in combination with a pair of dentalforceps having a loose pivot rivet, apair of pliers comprising a pair ofjaws, one of said jaws being of platelike shape, anelbow secured to saidjaw, a block loosely connected to said elbow, a nut threaded on the freeend of said elbow, a hinge pin loosely passed through said rivet andscrewed into said block.

6. A dental appliance comprising in com- ;bination with a pair of dentalforceps, a

pair of pliers comprising a pair of jaws adapted to open incontra-scissors manner,

bination with a pair of dental forceps, a pair of pliers including apair of pivotally connected members terminating in jaws, a springsecured to one of said members and engaging the other member, a setscrew passed through one of said members and adapted to limit the extentof opening of said jaws, one of said jaws being of platelike shape, anda hinge connection between said aw and forceps.

Niagara Falls, April 18th, 1922.

WILLIAM LORENZQ Signed in the presence ofa W. J. SEYMOUR, ISABELDRESDEN.

